Free deck pricing calculator for the MS Gulf Coast. Based on Lowe's Ocean Springs prices and local contractor rates. No sign-up needed.
Get Your Estimate →Enter your deck dimensions and preferences for an instant price range.
Get accurate measurements for a better estimate before calling a contractor.
Use a tape measure from the house to the outer edge (width) and along the house (length). Round to the nearest foot.
Note trees, slopes, utility lines, and door locations. These affect the final cost and design.
Sandy soil (common on the Coast) may need deeper footings. Clay soil needs different drainage. Both affect foundation costs.
A few things to think about before you start digging.
Most Gulf Coast cities require a permit for decks over 30" high or attached to the house. Check with your local building department — fines for unpermitted work can double the cost.
Dial 811 at least 3 days before digging post holes. They'll mark gas, electric, and water lines for free. Hitting a line can cost thousands — and it's your responsibility to check.
Salt air eats standard fasteners. Use stainless steel or hot-dipped galvanized screws, joist hangers, and post brackets. Regular steel will rust in 2-3 years on the Coast.
Deck boards need a 1/8" gap for water to drain. In coastal areas with heavy rain, consider a slight slope (1/4" per 10ft) away from the house. Standing water causes rot fast.
Your deck is only as good as its foundation. Sandy soil needs 24"+ deep footings below the frost line. On the Coast, that means digging deeper than you think — 12" diameter minimum.
Joist spans over 12' need engineering or larger lumber (2x8 instead of 2x6). If your deck is wider than 12', plan for a beam in the middle or step up to 2x10 joists.
What's different about building on the Coast — and what it means for your budget.
This calculator uses actual Lowe's Ocean Springs prices and verified local contractor rates — not generic national averages. Pressure-treated runs $11-15/sqft here vs $8-12 nationally. Composite is $22-28/sqft. The numbers reflect what you'll actually pay on the Coast.
Standard galvanized fasteners rust in 2-3 years within 5 miles of the water. Always spec stainless steel or hot-dipped galvanized joist hangers, screws, and post brackets. Expect to add 5-10% to your hardware budget vs an inland build.
Most of the Coast sits on sandy soil that doesn't hold posts like clay or loam. Deck footings need to go 24-36" deep (vs 12-18" inland) and be a minimum 12" diameter. That means more concrete, more labor, and a higher foundation cost.
Decks over 30" high need engineered connections — hurricane ties at every joist, 6x6 instead of 4x4 posts, and stainless steel through-bolts. Check with your city: Gulfport, Biloxi, and Ocean Springs all have different wind-load requirements.
Gulfport: Permits required for any deck over 30" high. Biloxi: All attached decks need a permit. Ocean Springs: Any deck attached to the house requires a permit + engineered drawings. Always call your city building department before you start digging.
Composite decking (Trex, TimberTech) is the most popular choice on the Coast — no staining, no splinters, handles humidity. Cedar is a good mid-range option that seals naturally. Avoid untreated pine — it won't last 5 years in this climate.
Choose the right material for your Gulf Coast climate.
$11–15/sq ft
Most affordable. Holds up well with annual sealing. Can warp in extreme heat.
$22–28/sq ft
No staining, no splinters, resists moisture. Best for the humid Gulf Coast climate.
$30–40/sq ft
Premium option. Completely waterproof, 25+ year warranty, looks like wood.
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